If someone who performs prayers in a sitting position has a doubt for which he must perform one rakʿah of ṣalāt al‑iḥtiyāṭ in a standing position or two rakʿahs in a sitting position, he must perform one rakʿah in a sitting position. If he has a doubt for which he must perform two rakʿahs of ṣalāt al‑iḥtiyāṭ in a standing position, he must perform two rakʿahs in a sitting position.